Apparatus for removing paint and varnish.



C. J. FESS. APPARATUS FOR RBMOVING PAINT AND VARNISH.

APPLICATION FILED JUNE 27, 1907.

Patented Jan. 4, 1910.

Zw I fills/TOR. Wi

WITNESSES.

UNrrED STA@ CHARLES J. Fass, or

NEWARK, NEW amis-EY, AssiGNoR r*ro THE PALMER-FREE yColvi- PANY, A CORPORATION OF NEW JERSEY,

APPARATUS 'FOR REMOVING PAINT AND VARNISH.

Patented J an. 4, 1910'.

Specification of Letters Patent. Application filed June 27, 1907'.- Serial No. 381,086.

To all whoa/Lit may concern with cach machine in order to increase its 554 Be it known that l, Ciiiiiiiins J. Fuss. a adalitahility. citizen of thc'United States, and a resident '.f he air-punip 2() con'iprise's a cylinder 21 of Newark, in the county of Essex and State within which is a piston 22 connected with 5 0f New Jersey, United States of Aiiioricn, the piston rod 222 on the upper end of which have' invented certain new and useful 1inis a handle i-hy nieans o'f which handle 60 provcments in "Apparatus for Rmmvingthe'puinp iiiay he operated. ln the piston Paint and Varnish, o'lz which the following 22 is a check-valve 25, and at a point near is a specification; i the,lowcr end of thc .puiiip cylinder 2l anik My invention relates to an apparatus for OhCl ChCClVilVC 2G 1S Pltllfd; The Pump removing paint and varnish. and its object 11151011 rod may be locked 1n its lower pe- 65 is to provide t Simple and efiicigiit iii-fitug@- sition hy turning it a part of a revolution ment for heating paint and varnish reinov7` S0 fliatithc pin 27 will pass iindcjL llOOl( 23 ing compositions and for applying thcin t,o 21ml 011.2115401 ll1 1'Cl y ilth`9y dQSii-ed siii-faces This apparatus is especially designed for I will describe my invent-imi in the followthe'piirpose ofireni'ov-ing paint and varnish 70 ing specification and point out the Howl from thesnrf: ces to which they are applied features thai-@0f in Claims, A v by spraying upon such siii'iaces ahhcinical Referring to the tlaWiiigS, Figure l iS i composition o1 lche class which combines vertical section of an apparatus constructed Wltll il] Vfli'mll (llSSOlVlnc material a waxy according to my invention. Fig. 2 is a f'ront lWClX WlllCll 1S Uflfll 1'01 lll@ PUI'DUS@ 0f 121'0- 75A elevation of it poi-tion 0f tlm appuimiic vei'iting Ievaporation of the solvent materials Shown in Fig. 1. Fig, 3 is n, piti yimv 0f which arc -gci'ierally henzol or 'alcoholic the part ofthe apparatus which is shown bOCllE'S 0l highly. Vol'illll@ Ilallllc- Siicli'u 25 in Fig.-2. Fig. 4 is a wiring diagram showconiposition is described and disclosed in ing one manner in which the elet-tti@ cii-m Letters latent Number 7141,88() issued to 80 cuits may he-connectcd. Fig. 5 is a sectional arleton Ellis Deccn'ihcrnfl, 1902. ln using side elevation of a modification of my inH a composition of this kind it is usually apvention, and Fig. fi is a vertical section of plied with a brush or similar means, and the another modification, these two figures wax which is held in solution at first conshoiaiingI diilei'ent forms of constructing geals on the surface, and tlierchy prevents 85 heater receptacles and shields. evaporation of the volatile solvent agents.

-Like characters of reference designate cor- .l have found that by heatingr such a com- IcSpOnCling parts in all of the. tigiires. position and applying itA to `a surface hy 10 designates a spraying device which i iiicans cfa sprayer its effectiveness is greatly comprises a closed cylinder '11 which Vtoi-ins increased. By this niethod it is possible to 90 a pressurechamber, and an air-pump 2O for other a greater surface in a given tiine,'and obtaining pressure within the cylinder. t2 (the heat increases the chemical. activity of `is the bottoni of this cylinder and l?. its top. the composition and causes the wax to gc- 40 The latter is provided at 14 with an openlatinize upon thc surface better on account of v'ing through which thc cylinder niav he' fillcd its quick change ot' tciiipeiatiire upon sti'ik- 95 with the desiredcheinicalcoiiipositioii. This: ing the surface. -Other advantages are opening niay lic closed hy a threaded cap in gained which l have f'iilly set 'forth iii a coini which a safety valve l4^ niayhe placed. panion aplilication tor Letters Patent which discharge pipe l5 is carried i'ioin a `point l have filed and which has hccn given Serial `ncar the bottoni of thc cylinder through its Nunihci' BSOtS and filed in thclatent (')fliec 100 top 13. 16 is a valve `iii this discharge piptl lune Qfith. 1907. i l5. and 17 is a flexible tiihe. 18 is a now/.lc The purpose ot' the present invention ,is to on the end of this tiihe hy iiieaiis oi' which provide a simple and cflicicnt apparatus for thc spray lnay bedirccted onto the desired applying apaiiit and varnish removing coinsurfaces. posit-ion according to the ahove nicthod. To

As this apparatus is for use on all kinds AandA sizes of surfaces several nozzles of dilfecent sizes and forms ne .u

Je furnished this end I construct a heating device for use in conpinction with the sprayer lll. lii a preferred .torni this heating device comprises 33 designates a base of non-conducting lmaterial which is attached to the heater receptacle and upon this base 1s mounted a socket 34 for connecting the receptacle with a suitablesource of electrical supply. A manually operated switch lever 36 is also mounted upon the base'33.

37 and 38 designate contact points upon which the switch lever 36 may be moved to close a circuit through the rheostat 32.

39 designates a high resistance elementA which is connected as shown between the contact points 37 and 38.

lReferring to Fig. 4 it may be seen that when the switch lever 3G is in its left-hand position no circuit is closed through the rheostat When, however, this switch lever is moved over onto contact 37 the rheostat is connected directly across the mains from the source of electrical supply which is designated in this case by 39A. rI`he heat generated by the 'electrical current will be transmitted to the cylinder 11 and its contents, and the shield 30 will preventI the radiation of this heat so that it will be retained within the cylinder ll. The heat thus obtained will produce pressure Within the pressure chamber, and the amount ot' pressure may be seen from the pressure gage 19. The safety valve 14 will prevent the ypressure from becoming excessive. If greater pressure is desired 1t may be obtained by means ofthe pump 2O in the usual manner. A

Ihe temperature required for the proper working of this apparatus is above the melt- 1ng point of the wax in the composition and greater than that of the surface to which the composition is to be applied. Rheostat when connected as above, 1s designed and proportioned to raise this composition quickly to the required temperature. If the electrical current is allowed to continue through'the rheostat 32 the temperature will become greater than is necessary. For this reason the high resistance element 39 may be provided so that after' the composition has been raised to the required temperature the switch lever 36 may be moved back onto contact point 38. A current will then How through the high resistance 39 and the rheostat 32, and these parts are so proportioned that they will maintain the composition within the cylinder ll at the desired temperature. The apparatus is then ready for use, and the colnliosition may he sprayed onto the painted or varnished surfaces, after which the' paint or varnish may be readily removed.

Iii' desired the sprayer 10 may be removed from the heater receptacle after its contents has been sufficiently heated, or it may be used with the heater receptacle on it.

In Fig. 5 I have shown the heater receptacle 3()A with a pipe-coil 40 within it. 4]. and 42 designate the inlet and outlet pipes connected with this heater-pipe-coil. Steam or hot water may be passed through the heater-'pipe-coil to give the contents of the cylinder ll the desired temperature.

In Fig. (S I have illustrated a still further modification of the heater receptacle. In this case the heater receptacle 30B is constructed with a rheostat 32 in its base, similar to that previously described, and in addition to this rheostat the side Walls of the receptacle are constructed to contain other .high resistance wires designated by 32A, so

that an electric current may be passed through the 'resistance wires in the base and in the sides of the receptacle.

I have illustrated several forms of my invention in order to show that I do not limit myself to any one construction and arrangement of parts.

What I claim is* l. An apparatus for heating and spraying Varnish remover comprising an inclosed cylinder, a pump within the cylinder, a removable receptacle adapted to surround the cylinder, and a heater associated with said receptacle. f

2. An apparatus forheating and spraying varnish remover comprising an inclosed cylinder, a pump within the cylinder, a removable receptacle adapted to surround the cylinder, and electrical means associated with said receptacle for producing heat.

3. An apparatus for heating "sprayino' varnish remover comprising an inclosed cyIinder, a pressure pump associated therewith, a removable receptacle adapted to surround the cylinder, anda rheostat in the 'base of the receptacle.

4. An apparatus for heating and spraying varnish `remover comprising an inclosed cylinder, a pump associated therewith, a removable receptacle adapted to surround the cylinder, a rheostat in the base of the receptacle, and a switch for connecting said vrheostat with a source of electricalsupply and for regulating the amount of current in the rheostat.

5. An apparatus for heating and spraying varnish remover comprising an inclosed cylinder, an air-pump associated therewith,

a removable receptacle adapted to surround the, cylinder vand to form an air-space about the sides of the cylinder, a rheostat in the receptacle, a high resistance element, anda manually operated switch arranged to connect the rheostat directly across the `mains I the cylinder and to form an air-space about the sides of .the cylinder, a rheostat in the base of the receptacle, `a high resistance element, and a manually operated switch arranged to connect the rheostat directly mains. v

across the mains from a source of electrical supply, or to connectthe rheostat and the high resistance element in series across said 15` mains. l

In testimony whereof I have signed my name to this specification in the presence of two subscribing' Witnesses.

lJHARLES J. FESS. Witnesses ERNEST W. MAR-SHALL, ELLA TUCH. 

